/*
 * Copyright (C) 2011 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.robotca.ControlApp;

import android.app.Activity;
import android.content.Intent;
import android.hardware.Camera;
import android.os.Build;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Toast;
import org.ros.address.InetAddressFactory;
import org.ros.android.RosActivity;
import org.ros.android.view.camera.RosCameraPreviewView;
import org.ros.node.NodeConfiguration;
import org.ros.node.NodeMainExecutor;
import android.util.Log;
import java.io.IOException;

/**
 * @author ethan.rublee@gmail.com (Ethan Rublee)
 * @author damonkohler@google.com (Damon Kohler)
 */
public class ShowCamera extends RosActivity  {

    private int cameraId;
    private RosCameraPreviewView rosCameraPreviewView;

    java.net.Socket socket;
    NodeConfiguration config;
    java.net.InetAddress local_network_address;

    public ShowCamera() {
        super("CameraPort", "CameraPort");
    }



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.show_camera);
        rosCameraPreviewView = (RosCameraPreviewView) findViewById(R.id.ros_camera_preview_view);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {

        if (event.getAction() == MotionEvent.ACTION_UP) {
            int numberOfCameras = Camera.getNumberOfCameras();
            final Toast toast;
            if (numberOfCameras > 1) {
                cameraId = (cameraId + 1) % numberOfCameras;
                rosCameraPreviewView.releaseCamera();
                rosCameraPreviewView.setCamera(getCamera());
                toast = Toast.makeText(this, "Switching cameras.", Toast.LENGTH_SHORT);
            } else {
                toast = Toast.makeText(this, "No alternative cameras to switch to.", Toast.LENGTH_SHORT);
            }
            runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    toast.show();
                }
            });
        }
        return true;

    }



    @Override
    protected void init(NodeMainExecutor nodeMainExecutor) {


         //to init ektelite !!!META!!! apo to fragment p petagete kai zitaei IP.


        cameraId = 0;

        rosCameraPreviewView.setCamera(getCamera());
        try {
            java.net.Socket socket = new java.net.Socket(getMasterUri().getHost(), getMasterUri().getPort());
            java.net.InetAddress local_network_address = socket.getLocalAddress();
            socket.close();
            NodeConfiguration nodeConfiguration =
                    NodeConfiguration.newPublic(local_network_address.getHostAddress(), getMasterUri());
            nodeMainExecutor.execute(rosCameraPreviewView, nodeConfiguration);
        } catch (IOException e) {
            // Socket problem
            Log.e("Camera Tutorial", "socket error trying to get networking information from the master uri");
        }

    }

    @Override
    public void onBackPressed() {
        super.onBackPressed();
        this.finish();
    }

    private Camera getCamera() {
        Camera cam = Camera.open(cameraId);
        Camera.Parameters camParams = cam.getParameters();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
            if (camParams.getSupportedFocusModes().contains(
                    Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO)) {
                camParams.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO);
            } else {
                camParams.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
            }
        }
        cam.setParameters(camParams);
        return cam;
    }
}
